摘要
分析了抽油机负荷叠加特性,根据油田配电网抽油机负荷功率变化特点,将某台变压器所连多台抽油机负荷曲线叠加后的不规则有功功率曲线等效为某单台抽油机负荷有功功率正弦变化的曲线,推导出抽油机负荷叠加后的油田配电网近似线损计算公式。采用该线损计算公式作为评价函数,对油田配电网进行网络重构。利用网络结构划分方法划分出油田配电网的支链邻接表,提出一种禁忌搜索算法,采用单步移动作为领域搜索策略,提高搜索精度。算例结果表明,提出的线损计算公式和禁忌搜索算法能够有效适用于油田配电网网络重构。
The load superposition characteristics of oil pumping units are analyzed in this paper. According to the timevarying characteristics of oil pumping loads in an oil-field distribution network, the irregular active power curve formed through the superposition of load curves corresponding to different oil pumping units connected to one transformer is equivalently treated as a sinusoidal curve of active load power from one single oil pumping unit. Moreover, the approximate power loss equation for the oil-field distribution network after the superposition of oil pumping loads is derived, which is further used as an evaluation function to reconfigure the oil-field distribution network. Network structure partition method is used to separate the distribution network and form an adjacency list. A Tabu Search algorithm is proposed, and single-step movement is adopted as its neighbor searching strategy to improve the searching accuracy. The result of an example shows that the proposed power loss equation and Tabu Search algorithm are effective for the reconfiguration of oil-field distribution network.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2017年第11期61-66,共6页
Proceedings of the CSU-EPSA
基金
西安市2017年科技计划资助项目
西安石油大学博士科研启动基金资助项目(2013BS006)
西安石油大学研究生创新与实践能力培养项目(YCS16212055)
陕西省2016年大学生创新创业训练计划
关键词
抽油机
线损计算
油田配电网
网络重构
禁忌搜索
oil pumping unit
power loss calculation
oil-field distribution network
network reconfiguration
Tabu search
